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https://issues.apache.org/jira/browse/HIVE-14775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15527063#comment-15527063
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Mohit Sabharwal commented on HIVE-14775:
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A bunch of JMXExceptions can get thrown by MetricsMBeanImpl#getAttribute here:
https://github.com/apache/hive/blob/master/common/src/java/org/apache/hadoop/hive/common/metrics/MetricsMBeanImpl.java#L50-L51
AttributeNotFoundException, MBeanException, ReflectionException are all types
of JMXException
> Investigate IOException usage in Metrics APIs
> ---------------------------------------------
>
> Key: HIVE-14775
> URL: https://issues.apache.org/jira/browse/HIVE-14775
> Project: Hive
> Issue Type: Sub-task
> Components: Hive, HiveServer2, Metastore
> Reporter: Barna Zsombor Klara
> Assignee: Barna Zsombor Klara
>
> A large number of metrics APIs seem to declare to throw IOExceptions
> needlessly. (incrementCounter, decrementCounter etc.)
> This is not only misleading but it fills up the code with unnecessary catch
> blocks never to be reached.
> We should investigate if these exceptions are thrown at all, and remove them
> if it is truly unused.
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